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green-thumbs
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    Ignition points are “out there” Often the contacts can be polished to a mirror finish (or at least acceptable finish) and give good service for as
    long as an antique might see use.

    Water pump kit may be a harder item to find. A lot of time we have to
    improvise or wing it. In the 21st Century finding New Old Stock parts
    for an outboard made in the 1st half of the 20th Century is not always
    the way to go, There are several vendors of used parts and there are
    options available to clever native craftsmen with time and patience ,
    A general response, I could refine it with a little more specific
    question. There are 3 different water pumps, each will work as an
    assembly on any pre war or early post war outboards made by
    Kiekhaefer Mercury. Some post factory swaps or upgrades may
    have taken place. Mercury did offer a kit to upgrade to the later
    vane type water pump….merely the same pump as used on the
    later motors, A no brain swap.
    Louis

    edit
    Kiekhaefer Mercury evolved thru 3 part identification systems

    prewar: an illustration of parts with a number and a sequentiasl number
    list as part of owners manual

    postwar better quality illustrations and an “M” prefix, The introduction
    of KE7 and KF5 complicated matters

    Current parts system was adopted in early 1950s. Most parts are
    identified by 2 digit prefix to identify part type followed by 5 digit
    part number and an “A” plus a number indicating more detail
    At the time the new system was adopted a New Parts List for Mercury
    Models manufactured 1939 to 1953 was issued. This converted the
    old parts systems to the new system

    OK so far?
    Kit, Water Pump Conversion Part # 46 – 24424 A4 is the new
    system part number A4 indicates 4 components in the kit besides
    the water pump housing. Parts name and number as follows

    46 – 24424 A1 Housing Assembly
    26 – 22058 Seal, Oil
    47 – 24447 Impeller Assembly
    24430 Hub. Impeller Drive
    24429 Cover, Water Pump

    The inclusion of a cover is probably because aluminum used for
    earlier water pump covers wore and corroded. Revised covers were
    made of brass and had a slot instead of a hole to engage locating pin
    in water pump housing.

    Hope this is helpful. AND is the answer for question you posed.
    If you are converting from an oscillator type pump to a vane type pump
    photo shows parts needed along with carry over parts from the
    earlier type pump.

    • This reply was modified 5 years, 8 months ago by green-thumbs.